glaciers and sea ice, can be observed directly, most of the permafrost’s melting takes place deep below the surface. However, since the permafrost stores huge quantities of carbon, which is released in the [...] thawing will further worsen global warming. In order to collect reliable, up-to-date information on permafrost thawing, the joint project UndercoverEisAgenten was launched today.

Permafrost
In the future, climate change could abruptly increase the amount of methane released by lakes in the permafrost regions of the Arctic. The explanation: because of thawing permafrost, these

Permafrost
For years now, scientists have been investigating how the gradual thawing of near-surface permafrost, which takes place in the uppermost layers of Arctic soils and in the course of decades [...] another phenomenon, which has only been sporadically investigated: the abrupt thawing of ice-rich permafrost, which can transform entire landscapes in only months of years through subsidence, the formation

Permafrost
The fate of permafrost - soil that is frozen for 2 or more years - is of huge importance for the global climate because of the large amounts of organic carbon stored in it, which can be released

threat to permafrost ecosystems” (ThinIce) investigates the short and long-term environmental risks associated with the potential release of contaminated industrial wastes due to permafrost thaw. In recent [...] accumulated in the Arctic. For a long time, permafrost was assumed to be a perfect storage for these potentially hazardous wastes. Nowadays, the permafrost thaws Arctic-wide and increases the risk of [...] that characterize intact permafrost ecosystems. to understand the resilience of ecosystems to pollutants (self-healing ability) to assess pollutant mobilization caused by permafrost thaw to develop strategies

the collected soil samples. Project Information Contact www.moment-permafrost.uni-hamburg.de/en/kontakt.html Website www.moment-permafrost.uni-hamburg.de/en.html Project Duration November 2022 until October [...] MOMENT The project " Permafrost Research Towards Integrated Observation and Modelling of the Methane Budget of Ecosystems," abbreviated as MOMENT, aims to reduce uncertainties in future greenhouse gas [...] This requires a comprehensive qualitative and quantitative understanding of the methane cycle in permafrost regions. In the Blæsedalen Valley on Disko Island, West Greenland, various studies on the current

Background: Methods and Preliminary Results: Simulating rapid permafrost degradation and erosion processes under a warming climate Model setup:Permafrost under a warming Climate: Current State and Further Development [...] slump dynamics. Current distribution of permafrost on the northern hemisphere. Current Land Surface Models (LSMs) used to simulate the degradation of permafrost under a warming climate only consider o [...] abundant form of thaw in many regions. Photographs showing typical features of permafrost degradation in the Arctic. Permafrost thaw is usually associated with intensive erosion and mass wasting. Schematic

Scientific Publication
Permafrost coasts make up about one third of the Earth’s total coastline. As a result of accelerated climate change, whole sections of coastline rapidly thaw, and erode into the [...] now shows that large amounts of carbon dioxide are potentially being produced along these eroding permafrost coastlines in the Arctic.

Spitsbergen. We had two main goals: Firstly, we maintained the Bayelva permafrost observatory where multiple air, snow, soil, and permafrost parameters have been measured since 1998. And secondly, we measured [...] elevations using a high-accuracy GPS antenna to estimate surface subsidence resulting from thawing permafrost. In addition, we visited research sites of local and international partners and discussed scientific

Nature Communications Study
The loss of arctic permafrost deposits by coastal erosion could amplify climate warming via the greenhouse effect. A study using sediment samples from the Sea of Okhotsk [...] Okhotsk on the eastern coast of Russia led by AWI researchers revealed that the loss of Arctic permafrost at the end of the last glacial period led to repeated sudden increases in the carbon dioxide concentration